Ah, ok. I suspect that some of that may be in Sizzle. Patches are welcome!

--John



On Sun, Feb 1, 2009 at 2:14 PM, Diego Perini <[email protected]> wrote:
>
> John,
> well I did some small test with:
>
> /\s+/
> /\\/g
>
> and it seems there is no appreciable speed gain that I could measure.
>
> I spotted those shorter RegExp because I saw they are re-used at least
> 4 or 5 times in current jQuery.
>
> Thanks to jdalton for the link and explanation.
>
>
> Diego
>
>
> On 1 Feb, 15:53, John Resig <[email protected]> wrote:
>> Is there any appreciable speed-up to caching RegExp that are that
>> small? I wasn't able to find any when I looked.
>>
>> --John
>>
>> On Sun, Feb 1, 2009 at 7:58 AM, Diego Perini <[email protected]> wrote:
>>
>> > I did have a quick look through the code and see that most of the
>> > (small) regular expressions are not cached and referenced but defined
>> > in-line in the conditionals/replacements.
>>
>> > For example these are repeatedly used in various place:
>>
>> > /\s+/
>> > /\\/g
>> > /\?/
>>
>> > I believe there are improvements in both speed and readability of code
>> > by caching them compiled.
>>
>> > Is there some reason I don't know in not defining some constants like
>> > TRIM, SQUEEZE, ESCAPE etc... ?
>>
>> > Diego
> >
>

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